kb

Overview

Main operating skill for LLM-maintained knowledge bases. Five workflows: compile, query, lint, evolve, reflect. All opus-orchestrated with model-aware subagent dispatch.

First action in every invocation: read kb.yaml from the project root. If missing, tell the user to run kb-init and stop.

Report Preferences

After reading kb.yaml, extract the report_preferences: block. These are free-text prose instructions the user set via kb-init or /kb-preferences, controlling how outputs are written (audience, register, depth, code_handling, diagrams, self_containment, citations, argument_iteration, notes).

Apply to all generated prose:

• Compile: preferences shape how new wiki articles are written — register, self-containment, depth of per-article profiles, diagram choices in article bodies.
• Query: preferences shape the final answer prose and any new wiki articles auto-evolved from the query.
• Lint / Evolve / Reflect: preferences shape the output report prose (lint reports, evolve suggestions), not the mechanical checks themselves.

If report_preferences: is missing: fall back to factory defaults in plugins/kb/references/report-style-guide.md silently. Mention it once in the first output of the session: "No report_preferences set — using factory defaults. Run /kb-preferences init to customize."

Per-task overrides. If the user's current request explicitly contradicts a stored preference, follow the request for this task only. Do NOT modify kb.yaml — reflection handles persistence.

Reflection at end of compile and query

After a compile or query finishes writing its output, run a lightweight reflection step — only propose preference updates for high-confidence signals:

• User explicitly asked you to "remember" something
• User corrected the same style choice twice in the conversation
• User gave clear feedback directly tied to the output just produced

Follow the Reflection Protocol in plugins/kb/skills/kb-preferences/SKILL.md. On approval, write updates to kb.yaml and log to .meta/_preference_history.md with trigger reflection after /kb compile (or /kb query). Skip silently otherwise.

Do NOT run reflection for lint / evolve / reflect workflows — their output is too mechanical to surface meaningful style signals most of the time. The user can run /kb-preferences reflect manually if they want a forced pass.

Obsidian-Native Formatting

All wiki output MUST use Obsidian-native conventions:

• YAML frontmatter delimited by ---
• [[wikilinks]] for ALL internal links -- NEVER use markdown-style [text](url) links for internal references
• [[wikilinks|display text]] when the display name differs from the target article
• Tags in frontmatter: tags: [concept, topic]
• Aliases in frontmatter: aliases: [alternate name]
• Image embeds: ![[image-name.png]]
• Standard markdown for everything else (headings, lists, bold, code blocks, etc.)

Graph Hygiene

Every .md file in an Obsidian vault becomes a node in the graph. Every internal link — [[wikilink]] or markdown-style [text](file.md) — becomes an edge. Link syntax does not control the graph. Inventory files (_index, _sources, _categories, _evolution, _tags) exist as files that link to every article, so they appear as the highest-degree nodes by construction. The fix is to keep them out of the vault index entirely.

• Meta/index files live in .meta/ at the vault root, not in wiki/. Obsidian ignores any folder whose name starts with . (the same mechanism that hides .obsidian/ itself). Files in .meta/ do not appear in the graph, search, quick switcher, backlinks, or file explorer. They remain readable and writable by tooling.

Canonical paths:

• .meta/_index.md — master article index
• .meta/_sources.md — raw-source → article mapping
• .meta/_categories.md — auto-maintained category tree
• .meta/_evolution.md — append-only change log
• .meta/_tags.md — canonical tag vocabulary

Any new meta/inventory file goes in .meta/ too, never in wiki/.

• Article-to-article links MUST be [[wikilinks]]. These carry semantic weight and are the intended graph edges.
• MOC pages MUST use [[wikilinks]] and live in wiki/. MOCs are curated, narrative conceptual hubs and belong in the graph.
• Verify every [[wikilink]] target exists before emitting it. Confirm either (a) the target article already exists in wiki/**/*.md (including via its aliases frontmatter), or (b) the agent is creating that target in the same compile pass. If neither, do NOT emit a wikilink — use plain text or italics. Never emit a wikilink as a "TODO placeholder." Why: dangling wikilinks render as ghost/placeholder nodes in the graph and open an empty editor when clicked.

On kb-init and compile

Ensure .meta/ exists in the vault root. If the vault contains legacy meta files at wiki/_index.md, wiki/_sources.md, wiki/_categories.md, wiki/_evolution.md, or wiki/_tags.md, move them to .meta/ with the same filename, and make sure no wiki/**/*.md articles reference them (they shouldn't — meta files reference articles, not the other way around).

.meta/ being a dotfolder is load-bearing. Do NOT rename it to meta/ or _meta/ — Obsidian would then index it.

Past mistakes recorded here so future agents don't repeat them:

1. Converting meta-file wikilinks to markdown-style links in the belief that this reduces graph degree — it does not; Obsidian resolves both styles as edges.
2. Relying on the graph-view search filter in .obsidian/graph.json — it hides files from the graph only, not from search/backlinks/quick-switcher.
3. Using userIgnoreFilters in .obsidian/app.json — this was partially correct (it does hide files from the index), but leaves the files visible in the file explorer and depends on the user not clearing the filter. The .meta/ dotfolder is the structural fix: Obsidian cannot index it regardless of user settings.

Tag Hygiene

Tags are for cross-cutting classification, not restating the title. Without a controlled vocabulary, tags drift (reasoning vs reasoning-models vs cot vs chain-of-thought) and lose their value as navigation.

• Use a namespaced, controlled vocabulary. Every tag MUST fall into one of these namespaces:
• domain/* — broad subject area (e.g., domain/reasoning, domain/rl, domain/alignment, domain/interpretability)
• method-family/* — class of technique (e.g., method-family/policy-gradient, method-family/preference-optimization)
• status/* — mirrors the status frontmatter field (status/seedling, status/budding, status/evergreen)
• moc — the existing bare tag for Map of Content pages (preserved for continuity)
• Tags must not restate the title. If an article is titled "GRPO," do NOT tag it grpo. Tag it domain/rl, method-family/policy-gradient. The title and aliases already handle that lookup dimension.
• Reuse before inventing. Before adding a new tag to any article, read .meta/_tags.md (the canonical tag index — see Index Maintenance) and pick an existing tag if it fits. Invent a new tag only when no existing tag captures the dimension, and when you do, add it to .meta/_tags.md in the same pass.
• Lint must flag tag drift — singletons (tags used on only one article), near-duplicates (different surface forms of the same concept), and any tag that violates the namespace convention. See Workflow 3.

Model Strategy

Always set the model parameter explicitly when dispatching subagents.

| Task | Executor | Verifier | |---|---|---| | Index scanning, link checking, file diffing | haiku subagents | none | | Summarizing individual sources | haiku subagents | opus spot-checks | | Wiki article writing | sonnet subagents | opus reviews before commit | | Deep research | sonnet subagents | opus orchestrates + verifies | | Re